A pigment that makes feathers and hair orange helps prevent cellular damage by removing excess cysteine from cells.

Orange pigment may limit cellular damage by managing sulfur-rich nutrients, shedding light on why orange coloration persists ...

A pigment that makes feathers and hair orange helps prevent cellular damage by removing excess cysteine from cells.

DURHAM, N.C. -- Fall is here, and we see the leaves turning yellow, orange or red thanks to a trick of our vision: our brains categorize colors. Scientists have learned that birds with colorful ...